Finding the Third Proportional to 393,187 and 593,038.50

Step by Step Solution

1. Step 1: Write the proportion equation
   393,187 : 593,038.50 = 593,038.50 : x
2. Step 2: Convert to fraction form
   393,187/593,038.50 = 593,038.50/x
3. Step 3: Cross multiply
   393,187x = 593,038.50 × 593,038.50
4. Step 4: Simplify right side
   393,187x = 351,694,662,482.25
5. Step 5: Solve for x
   x = 351,694,662,482.25/393,187
6. Step 6: Final answer
   x = 894,471.75